《科技英语自学课本 上》求取 ⇩

Lesson 11

Text:Light1

Reading Materials7

Ⅰ．How Light Travels7

Ⅱ．The Sun10

Lesson 214

Text:Gravitation14

Reading Materials23

Ⅰ．Movement of the Earth23

Ⅱ．How Big Is the Universe?26

Lesson 329

Text:Madame Curie and Radium29

Reading Materials36

Ⅰ．Marie Curie,Woman-Scientist36

Ⅱ．The Great Scientist Sir Isaac Newton39

Lesson 443

Text:Oil in the Earth43

Reading Materials50

Ⅰ．The Energy Gap50

Ⅱ．How Does Gasoline Come From?53

Lesson 557

Text:Satellites57

Reading Materials67

Ⅰ．Satellites and Acceleration67

Ⅱ．Satellites-Up and Down70

Lesson 674

Text:The Use of Radar74

Reading Materials83

Ⅰ．What Is Radar?83

Ⅱ．The Use of Radar86

Lesson 790

Text:Atoms and Elements90

Reading Materials101

Ⅰ．Atoms and Molecules101

Ⅱ．Who Discovered the Atom?104

Lesson 8108

Text:Electricity118

Reading Materials119

Ⅰ．The Coming of Electricity119

Ⅱ．Heat and Electricity122

Lesson 9125

Text:Hovercraft-A Flying Ship125

Reading Materials134

Ⅰ．Saucers in the Sky134

Ⅲ．Electric Trains136

Lesson 10142

Text:Fresh Water Factories142

Reading Materials152

Ⅰ．How Does Water Change to Ice?152

Ⅱ．The Mighty Raindrop155

Lesson 11159

Text:The Speed of Sound159

Reading Materials169

Ⅰ．Sound169

Ⅱ．Sound171

Lesson 12174

Text:Television174

Reading Materials185

Ⅰ．Pictures Through the Air(Part One)185

Ⅱ．Pictures Through the Air(Part Two)191

Lesson 13196

Text:The Migration of Birds196

Reading Materials206

Ⅰ．A House and Garden-for Birds206

Ⅱ．How Do Birds Find Their Way Home?209

Lesson 14213

Text:As Light as Air213

Reading Materials221

Ⅰ．UFOs221

Ⅱ．Flying Saucers224

Lesson 15227

Text:Albert Einstein227

Reading Materials237

Ⅰ．Thomas Alva Edison237

Ⅱ．Albert Schweitzer241

Vocabulary245